audit: remove github warning

All core formulae have been migrated to .io addresses except
for software maintained by github itself.
audit: improve comment
tomcat 7.0.42

Closes #21189.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Wine devel 1.6-rc5

Closes #21187.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>